To throw in my 2 cents worth...most of the guys that I know who put their **** all the way forward--did so to cut down on the loss of peripheral vision when you put your face up to any sort of aiming device (other than say, an EoTech). You don't lose all of what's around you and if people/objects are moving, you don't tend to miss them...as visually speaking goes, the edges of your eyes are the sharpest in detecting motion...they pick up movement better than the center part of your eyes, which is primarily dedicated to helping you discern color (hey...learning material revisited from Camp Skeletor! ain't it great!).

There was a trend at one time for doing this, but take the advice of the rest of these guys...put your sights where they belong. In the back, near your eyeball.

because at those distances, you shouldn't need to look through the sights to put accurate rounds on target,

Because at those distances, you need your peripherals. Tunnel vision is the opposite of what you want, and staring into an optic tends to do just that.

Then again, all my MOUT training was done using m16s with trijicon 4x RCOs. I guess it'd be different using a plain red dot. We can't afford all that fanciness ;)

Have you done a shoot house with live ammunition yet? Clear one of those using live rounds, and you may change your opinion.

My preference is an aiming laser of some variety (at night anyway), but using optics is certainly not uncommon, even at night. I'm actually thinking specifically of a very crusty E9 that I've seen cruising through rooms under NODs while still aiming through his EOTech. Incidentally, the same guy can't work a computer for ****.

"No. Listen to me because I know what I'm talking about here." -- Hannibal